Thermophysical properties of the liquid eutectic K-Pb alloy
A.Sh. Agazhanov1, A.R. Khairulin1,2, R.N. Abdullaev1,2, S.V. Stankus1
1Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
2Novosibirsk State University, Novosibirsk, Russia
Keywords: K-Pb eutectic alloy, thermal conductivity, temperature diffusivity, enthalpy, heat capacity, melt, laser flash method, drop method
Abstract
Using the laser flash method and the drop method, the thermal conductivity and the enthalpy increment of the eutectic K-Pb alloy (with a Pb content of 90.7 at.%) were measured in the temperature range from the liquidus point up to 1077-1175 K. The specific heat capacity and thermal diffusivity of the alloy were calculated. Approximation equations for the studied properties were obtained, and a table of reference data was developed. It was shown that the thermal conductivity of the liquid eutectic is less than that of pure lead and increases with temperature.
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